Flower ID: IMG_1419.JPG-05-12-2019 Flower name (scientific): Arabidopsis lyrata (Linnaeus) O’Kane & Al-Shehbaz PY: 1997. Pronunciation guide: (phonetic spelling) Ara-bi-DOP-sis ly-RAY-tuh Flower name (common): Lyre-leaved Rock Cress Family name (common): Mustard Family name (scientific): Brassicaceae Scientific name origin: Genus: From the Latin for resembling Arabis, the former genus to which this species belonged. Specific epithet: From the Latin for lyre-shaped Common name origin: From the shape of the leaves, with a common habitat being rocky outcrops, and cress being the common name of various plants with mostly edible leaves that have a bitter taste. Flower description: Size: 0.2 to 0.5 inches (5 to 13 mm) Petal count: 4 Color: white Other: flower arrangement, Raceme Plant description: Size: 4 to 16 inches (10 to 41 cm) Stem hairy: Upper stem glabrous, lower stem sparsely pubescent near the base. Other: Leaf description: attachment is basal and alternate, type is simple and lobed. Size: Basal leaves are about 1 to 8 cm long and about 4 to 13 mm wide. Upper stem leaves are about 0.5 to 4 cm long and about 2 to 8 mm wide, and smaller distally. Color: basal leaves are medium green to grayish green. Hairy: basal leaves typically basal pubescent, upper stem leaves usually glabrous. Other: Shape: leaf, (basal) oblanceolate or ovate, (cauline) oblanceolate (FNA). Shape: leaf, (basal) oblanceolate or ovate, (cauline) oblanceolate (FNA) Origin (native, introduced, invasive): Native Status (common, uncommon, threatened, rare): Common Bloom time (typical): April to August Cycle (annual, biennial, perennial): Biennial/Perennial Habitat: Woods, prairies, cliffs, sun or part shade, dry sandy soil. Fruit: Siliques typically ascending, up to about 4 cm in lebgth. Seed: Orange to light brown colored, up to about 1.4 mm in length, flattened. Importance to wildlife: Similar species (if any): The flowers resemble those of Arabidopsis thaliana (Mouse-ear Cress), but the difference in flower size: 3 mm across for A. thaliana compared with 6 to 13 mm across for A. lyrata, makes the separation of these two species straightforward. A few of the Cardamine species have some resemblance, e.g. C. parviflora (Small-flowered Bittercress), C. pratensis (Cuckoo Flower), C. pensylvanica (Pennsylvania Bittercress), and C. bulbosa (Spring Cress), but either the flower size is much smaller and/or the leaf shape is rather different from A. lyrata. Ethnobotany: No recorded uses by tribes in Wisconsin. Under the former name Arabis lyrata, used by the Alaska Natives as a food source; eaten raw or cooked (Moerman, p. 81, 1998). Latitude: 44.799997 Longitude: -91.506152 Altitude: 254.30 Distribution: In Wisconsin: (Adams, Ashland, Barron, Brown, Buffalo, Burnett, Chippewa, Clark, Columbia, Crawford, Dane, Door, Douglas, Eau Claire, Grant, Iowa, Iron, Jackson, Juneau, Kenosha, La Crosse, Langlade, Lincoln, Manitowoc, Marinette, Marquette, Monroe, Oconto, Outagamie, Pepin, Polk, Portage, Richland, Rock, Sauk, Shawano, Sheboygan, St. Croix, Trempealeau, Vernon, Vilas, Walworth, Washburn, Waupaca, Waushara, Wood) Click here for distribution map In US: (AK, CT, DC, DE, GA, IA, IL, IN, KY, MA, MD, MI, MN, MO, MS, MT, NC, NJ, NY, OH, OK, PA, TN, VA, VT, WI, WV) Click here for distribution map In Canada: (AB, BC, MB, NT, ON, QC, SK) Click here for distribution map References: Synonym(s): Basionym: Arabis lyrata Linnaeus Sp. Pl. 2: 665. 1753. Homotypic Synonym(s): POWO lists 4 homotypic synonyms for this species. Heterotypic Synonym(s): na Autonym:Arabidopsis lyrata subsp. lyrata (Other infraspecifics are Arabidopsis lyrata subsp.kamchatica (Fischer ex de Candolle) O'Kane & Al-Shehbaz, Arabidopsis lyrata subsp.petraea (Linnaeus) O'Kane & Al-Shehbaz. Both of these subspecies have been recorded from North America.) Wetland Status (NC): FACU Wetland Status (MW): FACU